Re: EMC and Taig w/ MicroProto

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Lester Caine <lester@...> wrote:

>
> John Stevenson wrote:
>
> > Can EMC2 run a lathe as yet ?
> Don't know it's on the to do list - I want a working MILL first with

ANY

> software.
>
> > Also with the original EMC there was an issue with 4th axis control,
> > When Art ported the EMC core over to Mach2 the 4tha xis didn't work
> > correctly.
> > It took Art about 4 goes to get this running.
> > has this been fixed? I ask because you may not be aware of it.
> > many don't use all the features in a package and assume that because
> > they are there, they work.
> Like Art I have the source code for EMC and EMC2 - it is NORMAL

practice

> when using open source code to supply fixes back to the project that
> provided the code, in fact the license normally requires it ;)
> If it needs fixing, then it will get fixed in the source.
>
> Lester Caine - G8HFL

Lester,
Would Art have supplied a fix back to EMC as he's not involved in that?
It's also OK talking about fixing a problem like this if you know how
it should work.
4th axis is a can of worms, there is no industry standard.
If you are at 300 degrees and command a move to 0 does it go back or
run on another 60 degrees. How is rotation controlled?
Are moves greater than 360 allowed for helical cutting ?

Art asked his customers what was required as he's not a machinist.
How do you ask a customer that at the moment doesn't exist ?

It may bee a moot point though as EMC has been runiing far longer then
Mach3 and has far more developers working on it, it should have been
fixed.

John S.